Cartes mémoires CCNA 200-125 (Seite 2 von 12)

Cartes-fiches	478
Utilisateurs	26
Langue	English
Catégorie	Informatique
Niveau	Autres
Crée / Actualisé	20.02.2017 / 03.10.2024
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Which IPv6 address is the equivalent of the IPv4 interface loopback address 127.0.0.1?

::

0::/10

2000::/3

::1

Which IPv6 address is the all-router multicast group?

FF02::1

FF02::2

FF02::3

FF02::4

Which two statements describe characteristics of IPv6 unicast addressing? (Select two)

Link-local addresses start with FE00:/12

Global addresses start with 2000::/3

Link-local addresses start with FF00::/10

If a global address is assigned to an interface, then that is the only allowable address for the interface.

There is only one loopback address and it is ::1

What is know as "one-to-nearest" addressing in IPv6?

Anycast

Unspecified address

Multicast

Global unicast

Which RFC was created to alleviate the depletion of IPv4 public addresses?

RFC 1918

RFC 1518

RFC 1519

RFC 4193

Which of the following correctly describe steps in the OSI data encapsulation process? (Select two)

Packets are created when the network layer adds Layer 3 addresses and control information to a segment.

Packets are created when the network layer encapsulates a frame with source and destination host addresses and protocol-related control information.

The presentation layer translates bits into voltages for transmission across the physical link.

The data link layer adds physical source and destination addresses and an FCS to the segment.

The transport layer divides a data stream into segments and may add reliability and flow control information.

Refer to the exhibit. A TFTP server has recently been instated in the Atlanta office. The network administrator is located in the NY office and has made a console connection to the NY router. After establishing the connection they are unable to backup the configuration file and iOS of the NY router to the TFTP server. What is the cause of this problem?

The network administrator computer has an incorrect IP address.

The NY router has an incorrect subnet mask.

The TFTP server has an incorrect subnet mask.

The TFTP server has an incorrect IP address.

Which two of these statements are true of IPv6 address representation? (Select two)

The first 64 bits represent the dynamically created interface ID.

There are four types of IPv6 addresses: unicast, multicast, anycast, and broadcast.

A single interface may be assigned multiple IPv6 addresses of any type.

Leading zeros in an IPv6 16 bit hexadecimal field are mandatory.

Every IPv6 interface contains at least one loopback address.

View the exhibit. In this VLSM addressing scheme, what summary address would be sent from router A?

172.16.0.0/24

172.64.0.0/16

172.32.0.0/17

172.16.0.0/16

172.16.0.0/20

Which three statements about IPv6 prefixes are true? (Choose three.)

FF00::/8 is used for IPv6 multicast.

FEC0::/10 is used for IPv6 broadcast.

FC00::/7 is used in private networks.

FE80::/10 is used for link-local unicast.

FE80::/8 is used for link-local unicast.

In which two formats can the IPv6 address fd15:0db8:0000:0000:0700:0003:400F:572B be written? (Choose two.)

fd15:db8::700:3:400F:572B

fd15::db8::700:3:400F:527B

fd15:0db8:0000:0000:700:3:400F:572B

fd15:0db8::7:3:4F:527B

fd15:db8:0::700:3:4F:527B

Which IPv6 header field is equivalent to the TTL?

Hop limit

Hop count

Flow label

TTD

Scan Timer

What are two benefits of private IPv4 IP addresses? (Choose two)

They can be assigned to devices without Internet connections.

They are routed same as public IP addresses.

They are less costly than public IP addresses.

They eliminate the necessity for NAT policies.

They eliminate duplicate IP conflicts.

A workstation has just resolved a browser URL to the IP address of a server. Which protocol will the workstation now use to determine the destination MAC address to be placed into frames directed toward the sever?

HTTP

RARP

ARP

DHCP

DNS

Which destination addresses will be used by Host A to send data to Host C? (Select two)

the IP address of Host C

the MAC address of Host C

the IP address of the router E0 interface

the MAC address of the router E0 interface

the IP address of SW1

Which statement about vlan operation on Cisco catalyst switches is true?

Ports between switches should be configured in access mode so that vlans can span across the ports.

When a packet is received from an 802.1Q trunk, the vlan id can be determined from the source MAC address table.

Unknown unicast frames are retransmitted only to the ports that belong to the same vlan.

Broadcast and multicast frames are retransmitted to ports that are configured on different vlan.

A network administrator is configuring an EtherChannel between SW1 and SW2. The SW1 configuration is shown. What is the correct configuration for SW2?

interface FastEthernet 0/1, channelgroup 1 mode passive, switchport trunk encapsulation dot1q, switchport mode trunk, interface FastEthernet 0/2, channelgroup 1 mode passive, switchport trunk encapsulation dot1q, switchport mode trunk

interface FastEthernet 0/1, channelgroup 1 mode active, switchport trunk encapsulation dot1q, switchport mode trunk, interface FastEthernet 0/2, channelgroup 1 mode active, switchport trunk encapsulation dot1q, switchport mode trunk

interface FastEthernet 0/1, channelgroup 1 mode desirable, switchport trunk encapsulation dot1q, switchport mode trunk, interface FastEthernet 0/2, channelgroup 1 mode desirable, switchport trunk encapsulation dot1q, switchport mode trunk

interface FastEthernet 0/1, channelgroup 1 mode auto, switchport trunk encapsulation dot1q, switchport mode trunk, interface FastEthernet 0/2, channelgroup 1 mode auto, switchport trunk encapsulation dot1q, switchport mode trunk

View the exhibit carefully. Based on the information given, which switch will be elected the root bridge and why?

Switch SW3, because it is the most centrally located switch.

Switch SW4, because it has the highest priority.

Switch SW2, because it has the highest MAC address.

Switch SW1, because it has the lowest MAC address.

Switch SW3, because it has the lowest priority.

Which three statements about RSTP are true? (Choose three)

RSTP port states are blocking, discarding, learning, or forwarding.

RSTP expands the STP port roles by adding the alternate and backup roles.

RSTP significantly reduces topology reconverging time after a link failure.

RSTP provides a faster transition to the forwarding state on point-to-point links than STP does.

RSTP use the same timer-based process as STP on point-to-point links.

Which MTU size can cause a baby giant error?

1600

1518

1500

9216

If the devices produced the given output, what is the cause of the EtherChannel problem?

SW1 Fa0/1 interface is administratively shut down.

There is an MTU mismatch between SW1 Fa0/1 and SW2 Fa0/1 interfaces.

There is a speed mismatch between SW1 Fa0/1 and SW2 Fa0/1 interfaces.

There is an encapsulation mismatch between SW1 Fa0/1 and SW2 Fa0/1 interfaces.

Which two switch states are valid for 802.1w? (Choose two)

Disabled

Backup

Learning

Listening

Discarding

Which three of these statements regarding 802.1Q trunking are correct? (Select three)

802.1Q trunks should have native VLANs that are the same at both ends.

802.1Q native VLAN frames are untagged by default.

802.1Q trunks can use 10 Mb/s Ethernet interfaces.

802.1Q trunks require full-duplex, point-to-point connectivity.

802.1Q trunking ports can also be secure ports.

Which protocol supports sharing the VLAN configuration between two or more switches?

STP

VTP

multicast

split-horizon

On a Cisco switch, which protocol determines if an attached VoIP phone is from Cisco or from another vendor?

CDP

TCP

RTP

UDP

View the exhibit. What would be two results if the hub were replaced with a switch that is configured with one Ethernet VLAN? (Select two)

The number of broadcast domains would increase.

The number of collision domains would increase.

The number of broadcast domains would remain the same.

The number of broadcast domains would decrease.

The number of collision domains would decrease.

View the exhibit. All switch ports are assigned to the correct VLANs, but none of the hosts connected to SwitchA can communicate with hosts in the same VLAN connected to SwitchB. Based on the output shown, what is the most likely problem?

Switch IP addresses must be configured in order for traffic to be forwarded between the switches.

The access link needs to be configured in multiple VLANs.

VTP is not configured to carry VLAN information between the switches.

The link between the switches is configured in the wrong VLAN.

The link between the switches needs to be configured as a trunk.

View the exhibit. Switch SW1 needs to send data to a host with a MAC address of 00b0.d056.efa4. What will SW1 do with this data?

SW1 will forward the data to its default gateway.

SW1 will send an ARP request out all its ports except the port from which the data originated.

SW1 will flood the data out all of its ports except the port from which the data originated.

SW1 will drop the data because it does not have an entry for that MAC address.

At which layer of the OSI model does the protocol that provides the information that is displayed by the show cdp neighbors command operate?

Transport

Network

Application

Data link

Physical

Which option is a benefit of switch stacking?

It provides redundancy with no impact on resource usage.

It supports better performance of high-needs applications.

It provides higher port density with better resource usage.

It simplifies adding and removing hosts.

What parameter can be different on ports within an EtherChannel?

Trunk encapsulation

DTP negotiation settings

Duplex

Speed

Which process is associated with spanning-tree convergence?

Learning the sender bridge ID

Electing designated ports

Assigning the port ID

Determining the path cost

Assuming the default switch configuration, which VLAN range can be added, modified and removed on a Cisco switch?

1 through 1001

2 through 1001

1 through 1002

2 through 1005

Which statement about switch access ports is true?

They drop packets with 802.1Q tags.

A VLAN must be assigned to an access port before it is created.

They can receive traffic from more than one VLAN with no voice support.

By default they carry traffic for VLAN 10.

Refer to the exhibit. Which three ports will be STP designated ports if all the links are operating at the same bandwidth? (Select three)

Switch A - Fa0/0

Switch A - Fa0/1

Switch B - Fa0/0

Switch B - Fa0/1

Switch C - Fa0/0

What are two reasons that duplex mismatches can be difficult to diagnose? (Choose two.)

Autonegotiation is disabled.

The interface displays a connected (up/up) state even when the duplex settings are mismatched.

The symptoms of a duplex mismatch may be intermittent.

Fullduplex interfaces use CSMA/CD logic, so mismatches may be disguised by collisions.

1Gbps interfaces are fullduplex by default.

Why will a switch never learn a broadcast address?

Broadcast frames are never sent to switches.

A broadcast frame is never forwarded by a switch.

Broadcasts only use network layer addressing.

Broadcast addresses use an incorrect format for the switching table.

A broadcast address will never be the source address of a frame.

View the exhibit carefully. Which of the following statements describe the network as illustrated in the exhibit? (Select two)

There are two broadcast domains in the network.

There are four collision domains in the network.

There are five collision domains in the network.

There are seven collision domains in the network.

There are four broadcast domains in the network.

A network interface port has collision detection and carrier sensing enabled on a shared twisted pair network. From this statement, what is known about the network interface port?

This is a port on a network interface card in a PC.

This is a 10 Mb/s switch port.

This is an Ethernet port operating at full duplex.

This is a 100 Mb/s switch port.

This is an Ethernet port operating at half duplex.

Which two commands can be used to verify a trunk link configurationt status on a given cisco switch? (choose two)

show interfaces interface trunk

show interfaces vlan

show interfaces interface

show interfaces interface switchport

show ip interface brief

CCNA 200-125

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